Here is another gadget that turns your iPhone into a thermal imaging camera. The Xinfrared T2S Plus has a 256×192 IR resolution and 25Hz frame rate. It has a temperature detection range of 842F. The companion app has 6 temperature correction modes, so you can get clear images.
The Xinfrared T2S Plus has a 8mm macro adjustable lens and a 44.9°x33.4° FoV. It has multiple color palettes for your to choose from. The companion app gives you access to PIP mode and other advanced features. An Android version of this is also available. The T2S Plus lasts up to 5 hours depending on your phone.[where to get it]